Sulawesi (formerly Celebes) is located in the centre of the Indonesian Archipelago, straddling the equator. It is a region whre three major plates converge and interact, which has given rise ti ah highly complex and diverse geology, consisting of metamorphic complexes, ophiolite terranes, volcanic arcs, granitoid belts, and sedimentary basins. This in turn has resulted in a divesity of mineral …
Indonesia has 129 volcanoes, 79 of them erupted after the 16th century. Volcanological Survey of Indonesia (VSI) has observed continuosly were 64 volcanoes from 68 observatory. The mayor methods to monitor the volcanoes are seismic observation by 1 seismometer and visual observation. Observers at the observatory have reported daily number of volcanic earthquakes and visual activity to VSI in Ba…
For the post-World War II period, most of the data are derived from observations by the then Volcanological Survey Division of the Geological Survey of Indonesia, where one of us (I.S) was attached since 1952.